Power One AURORA PVI-3.0-OUTD-S-US, Инструкция по установке и эксплуатации

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Installation and Operator’s Manual Page 99 of 108
(PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)
8.6 Voltage and frequency limits
The UL1741 requires, for voltage and frequency, the following limits for utility
interaction:
Simulated utility source Condition
Voltage (V) Frequency (Hz)
Maximum time
(sec) at 60 Hz
a
before cessation
of current to the
simulated utility
A < 0.50 V
nor
b
Rated (60 Hz) 0.16
B 0.50 V
nor
b
≤ V <
0.88 V
nor
Rated (60 Hz) 2
C 1.10 V
nor
b
< V <
1.20V
nor
Rated (60 Hz) 1
D 1.20V
nor
≤ V Rated (60 Hz) 0.16
E Rated f > rated + 0.5
c
0.16
F Rated f < rated –0.7
c
0.16
a
When a utility frequency other than 60 Hz is used for the test, the
maximum number of cycles it takes to cease to export power to the
simulated utility shall not exceed the number of cycles a utility
frequency of 60 Hz takes regardless of the time the inverter takes to
cease to export power to the simulated utility.
b
V is the nominal output voltage rating.
C
The rate of change in frequency shall be less than 0.5 Hz per second.